Separable fastener.



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DANIEL l'. CBMICHIEL, OF MINNEAPOLIS, MINNESOTA.

SEPRABLE FSTENER.

escasas.

specification of Letters Patent.

ratenceenev. ia, reis application :mec hay s, ieri.v serial no. 173,813.

To all whom t may concern:

Be, it known that I, DANIEL F. CAR- Mrcnmi., a citizen of the UnitedStates, residing at-Minneapolis, iny the county 'of Hennepin and Stateof Minnesota., have invent# ed` certain new and useful Improvements inSeparable Fasteners; and I do hereby de- Glare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it ppertains to make and use thesame.

y invention has for its object to provide an extremely simple and highlyelic1ent separable fastener, intended for general use, but especiallyadapted for use in connection with wearing apparel.

llor the above end, enerall stated, the

imrention consists of t e nove devices and combinations of deviceshereinafter dea scribed and dened in the claims. vln the accompanyingdrawings, which illustrate the invention, like characters indicate likeparts throughout the several views.

Referring tothe drawings,

1 re 1 is a perspective view of theA mem ers of the separable fastenerspulled apart;

Fig. 2 is a'pl'an view of the socket plate; ig. Bis a view in sectiontaken on the line 3 3 .of-Fig. 2 5

Fig. 4 is a plan view of the head plate; Fig. 5 is a view in sectiontaken on the line 5 5 of Fig. 1; `Fig. 6 is a plan view 'of theseparable fastener showing the iirst step in moving the members thereofinto interlocking engage-y ment;

Fi line --7 of Fig. 6;

l Fi 8 isa view' lcentre/spending to Fig. 7,

but s owing a further step in moving the members of the separablefastener into intertiti lacking engagement; Fig'. 9 is a plan View oi'the separable fastener with the members thereof interlocked;

'dit

Fig. 10 is a view in section taken on'thel line 10..-10 of Fig. 9;

Fig. 11 is a plan view showing a modilication oi the separable fastenerand illustrating the lirst step in moving the members thereof intointerlocking engagement;

Fig. 12 is a View, partly .in edge elevation r 7 is a View 1n sectiontaken on thel and partly in section taken on the line 12-12 of Fig. 11;

Fig. 13 is a view corresponding to Fig. 12, With 'the exception that themembers are in -interlocking engagement;

Fig. 14 is a plan view vof the socket member shown in Figs. 11, 12 and13; and

Fig. 15 is a view in section taken on the line 15*15 of Fig. 14.

Referring first tothe separable fastener shown in Figs. 1 to l0,inclusive, the numeral 16 indicates a socket plate or memher providedwith a slot 17 having an expan end of the slot 17 is bent laterallyinward to form a stop 18 which extends transversely with respect to saidslot. Fitted within the socket member 16, is an endless retaining spring19 that is bent inwardly upon itself to form a substantially U-shapedsection so arranged that its intermediate portion exe tends transverselyacross the expanded end of the `slot 17. A plurality (as shown four) ofcircumferentially spaced sewing holes 2() are formed in the peripheraledge portion of the socket plate 16. Three of these sewing holes 20 areformed by cutting the socket plate 16 on three sides of each of saidsewing holes to form clips 21, that are folded inward onto ltheretaining spring 19 to secure the same to the socket plate 16.

The other member of the separable fastener comprises a head plate 22having an integrally formed downwardly and outwardly curved neck 23,which terminates in a head 24. The neck 23. and head 24 have the samecontour as the slot 17 and which head extends ina plane that is parallelto the head plate 22. Formed in the 'head plate 22,. are a plurality ofsewing holes 25, and pressed from the intermediate portion of the head2,4 is a retaining lug 26. The members 16 and 22 of the se arablefastener are secured, one to each of Phe two flaps of a garment, orother artic e, bystitching through .the respective sewing holes. lt is,of course, understood Vthat in place of se-v curing the se arablefastener to an article ed end and a contracted end. A portion of themetal cut to form the expanded by st1tches, c ips, or othersuitablemeans'l` ble fastener, the same are yplaced in relation .sewing holesSO. The retaining spring to each other, as shown in Figs G and T, and inwhich position, the lock lng o bears` upon the retaining spring lf).ri`hen. by pressing the two members of the separable fasteners together,the retaining spring lf? isdepresse'd and the neck 23 moved into thecontracted end of the slot l? and the head 2l moved through the expandedend ot said slot, as shown in Fig. S. lllliile the ref.

ing spring 19 is held depressed, the head plate Q2 of the separablefastener is named ivith respect to the socket plate lll to drav; itsneck Q3 intoithe contracted end of the slot 17 and thereinv7 interlockthe head "2 with the socket plate TLG. This movement of the head platecarries the lock lne 2G ont of engagement with the retainingI spring 19and allows the saine lic move into the path of movement of said 4lng7 asshown in Fil. 10. The tension of the spring l is very lr! light andsimply prevents the members of the separable fastener from separatingnnder slack. l

From the above description, it is evident that when the members of theseparable fastenerare interlocked, the neck of the head plate 2Q engages'the transverse wall in the contracted'end of the slot 1? as a positivestop onivhich the pulling strain between the members of theSs'eparablefastcn 1r comes, To release the members of the separablefastener. a reverse movement from that required to carry the head Qiritothe conltracted end 'of the slot 17, will canse. the lock lug 26 to camthe retainingr spring 19 ontof its path of movementy and permit the headto move into the expanded end of said slot. 'fn the separating movementof the members of the separable fastener, the head Q-'l engages the stop18 whichproperly positions the sametogether with the neck Q3, forremoval through the slot. 1T.

llet'errinq now to the separable fastener shown yin l1 to 15,inclnsivethe socket platel and head plate are indicated by thennn'ierais 27 and 28, respectively. The socket plate QT is o' the sameform as the socket plate 1li, has ya slot 29, which corresponds in formto 'the slot 17; and is provided with El for the socket plate Q7 isintegral therewith` extends from the expanded end of its slot 29, and isformed from `the material cut from said socket plate to form the slot25). As shown`r the retaining spring 31 is bent upon itself to give thevsame the rcqnired resiliency and its free end is located atsubstantially the same point as the transverse section of the retainingspring 19.'

The head plate 28 is of annular form with circumferentiall)7 spacedserving holes 32 and has an axially located neck 33, which terminates inahead 3l having a lock lng The movements required to carryv the head 34;inte interlocking engagement 'with the contracted end of the slot 29 arethe same as those of the previously described separable fastener` andthe retaininfr spring 31 engages the lock lng to vieldingly hold themembers of said separable fastener interloeked. in separating the headplate 28 from the socket plate :27, the head 3 en-V gages the spring 3lat its junction with the socket plate 2T as a stop to properlvY positionsaid head 'for removal from the slot Q9.

'lne members of the different forms of separable fasteners shown in thedrawings, are. interchangeable., or in other Words` the socket plate 16may be nrcd in connection with the head plate 28, and. likewise, the l'plate 2'? may be used in connection with the head plate The separablefasteners are Well adapted for use in connection with light fabrics forthe reason, very little force is required in connecting and separat-Vinn the members thereof. l

What l claim is i 1. sepzn'able fastener comprising a socket plate and ahead plate., saidsocket plate having av slot with a contracted end andan expanded' end, said head plate having a neck terminating in a headadapted to be inserted t? ough the expanded end of interlocked ivith thecontracted the slot and end thereo'hand an endless retaining springmounted in the socket plate and extending across said slot andrengageable with the head plate to yieldinghr hold the head plate andthe socket plate interlocked.

2. A separable fastener comprising a socket plate and a head plate,`saidsocket plate having a slot With a contractedv end and an expanded end,said head plate having a neck terminating in a head adapted to beinserted through the expanded end of the slot and interlocked withthe'oontracted end thereof, said head plate having a lock lug and saidsocket plate having a retaining spring the end of which is engageableWith the adjacent face of the lock lng to `vieldingl)Y hold the headplate and the socket plate interlocked.

A, separabhl fastener comprising a socketpiate and a head plate, saidsocket plate having a slot with a contracted end and an expanded end,said head plate having a neck terminating in a head adapted t0 beinserted through the expanded end of the slot and tlnterlocked with thecontracted end thereofr'said head plate having a lock lug,

a retaining spring mounted inthe socket member and engage: ble with thelock lug to vieldinghV holdl the head plateanol socket plateinterlocked, a clip integral with the socket plate for securing theretaining spring thereto, and asewing -hole in the socket member at thefixed end of the clip.y 4. A separable fastener comprisin,I i socketplate and a head plat plate having a slot with a contracted v e, said soret and an expanded end, said plate having a neck terminating in a hondadapted to he insQx-ted through ho expanded and of tho Slo( andinterockod with the, Qonfravted end thereof, said hond plate having alock lug and said .Qockvt pluto. hzwng'n retaining spring cngagcablo wihtho ock lug to yieldingly hold the hond plate and the Socke

